I ended up getting a Casio Privia PX5s and use it both ways as a MIDI controller and keyboard with sounds. Hammer action and only 25lbs. Does the job for me now. I want to add a small MIDI keyboard controller myself but haven't went looking seriously yet. I also have an old Alesis QS61 keyboard that has synth keys that I use for organ sounds. My problem with the Studiologic is several keys stopped working and the sensors were not available. Plus I actually like the Privia PX5s keyboard better. I personally go the route with get a good 88 Hammer action piano that has MIDI out and get another small keyboard with all the controllers buttons that you might need and use them together